Cisco IOS/IOS XE IPv6 Packet input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco IOS and IOS XE. Impacted is an unknown function of the component IPv6 Packet Handler. The manipulation results in input validation. This vulnerability is cataloged as CVE-2017-3850. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Cisco IOS and IOS XE (Router Operating System) (unknown version). Affected is an unknown code block of the component IPv6 Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability.

The bug was discovered 03/20/2017. The weakness was shared 03/20/2017 by Omar Eissa as cisco-sa-20170320-aniipv6 as confirmed advisory (Website). The advisory is available at tools.cisco.com. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2017-3850 since 12/21/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 97945 (Cisco IOS ANI IPv6 Packets DoS (cisco-sa-20170320-aniipv6)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316097 (Cisco IOS and IOS XE Software IPv6 Denial of Service Vulnerability (cisco-sa-20170320-aniipv6)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97945), SecurityFocus (BID 96971†) and SecurityTracker (ID 1038065†). The entry VDB-98333 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Cisco): 8.6
Vendor Vector (Cisco): 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97945
Nessus Name: Cisco IOS ANI IPv6 Packets DoS (cisco-sa-20170320-aniipv6)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco IOS XE Software IPv6 Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/21/2016 🔍
03/20/2017 +89 days 🔍
03/20/2017 +0 days 🔍
03/20/2017 +0 days 🔍
03/20/2017 +0 days 🔍
03/20/2017 +0 days 🔍
03/21/2017 +1 days 🔍
03/21/2017 +0 days 🔍
03/24/2017 +3 days 🔍
08/28/2024 +2714 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170320-aniipv6
Researcher: Omar Eissa
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2017-3850 (🔍)
GCVE (CVE): GCVE-0-2017-3850
GCVE (VulDB): GCVE-100-98334

OVAL: 🔍

SecurityFocus: 96971 - Cisco IOS and IOS XE Software CVE-2017-3850 Denial of Service Vulnerability
OSVDB: - CVE-2017-3850 - Cisco - Multiple Products - Denial of Service Issue
SecurityTracker: 1038065

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/21/2017 10:53
Updated: 08/28/2024 08:25
Changes: 03/21/2017 10:53 (87), 09/10/2020 16:44 (7), 11/14/2022 09:59 (4), 08/28/2024 08:25 (16)
Complete: 🔍
Cache ID: 216:8D8:103

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